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https://issues.apache.org/jira/browse/HBASE-3584?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13185807#comment-13185807
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[email protected] commented on HBASE-3584:
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+1 with some comments below.
http://svn.apache.org/repos/asf/hbase/trunk/src/main/java/org/apache/hadoop/hbase/client/AtomicRowMutation.java
<https://reviews.apache.org/r/3481/#comment9816>
You think this class needs to be AtomicRowMutation? (makes me want to
'duck and cover'). All mutations on a row in hbase are 'atomic' so the prefix
strikes me as redundant
http://svn.apache.org/repos/asf/hbase/trunk/src/main/java/org/apache/hadoop/hbase/client/AtomicRowMutation.java
<https://reviews.apache.org/r/3481/#comment9817>
Yeah, its kinda crazy all this duplication of say the row byte array..
it'll be here and then up in Put and Delete. Its like we need a shorthand of
some kind.... but for another time.
http://svn.apache.org/repos/asf/hbase/trunk/src/main/java/org/apache/hadoop/hbase/client/AtomicRowMutation.java
<https://reviews.apache.org/r/3481/#comment9818>
Should be 0? (No biggie)
http://svn.apache.org/repos/asf/hbase/trunk/src/main/java/org/apache/hadoop/hbase/client/AtomicRowMutation.java
<https://reviews.apache.org/r/3481/#comment9819>
Why have an add for Put and one for Delete and not just an add Mutation?
http://svn.apache.org/repos/asf/hbase/trunk/src/main/java/org/apache/hadoop/hbase/client/AtomicRowMutation.java
<https://reviews.apache.org/r/3481/#comment9820>
Important!
http://svn.apache.org/repos/asf/hbase/trunk/src/main/java/org/apache/hadoop/hbase/client/AtomicRowMutation.java
<https://reviews.apache.org/r/3481/#comment9821>
Usually we add space around operators. Next time.
http://svn.apache.org/repos/asf/hbase/trunk/src/main/java/org/apache/hadoop/hbase/client/AtomicRowMutation.java
<https://reviews.apache.org/r/3481/#comment9822>
Good
http://svn.apache.org/repos/asf/hbase/trunk/src/main/java/org/apache/hadoop/hbase/client/HTable.java
<https://reviews.apache.org/r/3481/#comment9823>
Call it mutate?
http://svn.apache.org/repos/asf/hbase/trunk/src/main/java/org/apache/hadoop/hbase/regionserver/HRegion.java
<https://reviews.apache.org/r/3481/#comment9824>
mutate?
http://svn.apache.org/repos/asf/hbase/trunk/src/main/java/org/apache/hadoop/hbase/regionserver/HRegion.java
<https://reviews.apache.org/r/3481/#comment9825>
Duplicated code? We should fix this up some day
- Michael
On 2012-01-13 17:11:21, Lars Hofhansl wrote:
bq.
bq. -----------------------------------------------------------
bq. This is an automatically generated e-mail. To reply, visit:
bq. https://reviews.apache.org/r/3481/
bq. -----------------------------------------------------------
bq.
bq. (Updated 2012-01-13 17:11:21)
bq.
bq.
bq. Review request for hbase.
bq.
bq.
bq. Summary
bq. -------
bq.
bq. Add API for atomic row mutations to HBase (currently Put and Delete).
bq.
bq. Client API would look like this:
bq. Delete d = new Delete(ROW);
bq. Put p = new Put(ROW);
bq. ...
bq. AtomicRowMutation arm = new AtomicRowMutation(ROW);
bq. arm.add(p);
bq. arm.add(d);
bq. myHtable.mutateAtomically(arm);
bq.
bq.
bq. This addresses bug HBASE-3584.
bq. https://issues.apache.org/jira/browse/HBASE-3584
bq.
bq.
bq. Diffs
bq. -----
bq.
bq.
http://svn.apache.org/repos/asf/hbase/trunk/src/main/java/org/apache/hadoop/hbase/client/AtomicRowMutation.java
PRE-CREATION
bq.
http://svn.apache.org/repos/asf/hbase/trunk/src/main/java/org/apache/hadoop/hbase/client/HTable.java
1231172
bq.
http://svn.apache.org/repos/asf/hbase/trunk/src/main/java/org/apache/hadoop/hbase/client/HTableInterface.java
1231172
bq.
http://svn.apache.org/repos/asf/hbase/trunk/src/main/java/org/apache/hadoop/hbase/coprocessor/CoprocessorHost.java
1231172
bq.
http://svn.apache.org/repos/asf/hbase/trunk/src/main/java/org/apache/hadoop/hbase/io/HbaseObjectWritable.java
1231172
bq.
http://svn.apache.org/repos/asf/hbase/trunk/src/main/java/org/apache/hadoop/hbase/ipc/HRegionInterface.java
1231172
bq.
http://svn.apache.org/repos/asf/hbase/trunk/src/main/java/org/apache/hadoop/hbase/regionserver/HRegion.java
1231172
bq.
http://svn.apache.org/repos/asf/hbase/trunk/src/main/java/org/apache/hadoop/hbase/regionserver/HRegionServer.java
1231172
bq.
http://svn.apache.org/repos/asf/hbase/trunk/src/main/java/org/apache/hadoop/hbase/rest/client/RemoteHTable.java
1231172
bq.
http://svn.apache.org/repos/asf/hbase/trunk/src/test/java/org/apache/hadoop/hbase/client/TestFromClientSide.java
1231172
bq.
http://svn.apache.org/repos/asf/hbase/trunk/src/test/java/org/apache/hadoop/hbase/coprocessor/TestRegionObserverInterface.java
1231172
bq.
http://svn.apache.org/repos/asf/hbase/trunk/src/test/java/org/apache/hadoop/hbase/regionserver/TestAtomicOperation.java
1231172
bq.
bq. Diff: https://reviews.apache.org/r/3481/diff
bq.
bq.
bq. Testing
bq. -------
bq.
bq. * Simple functional test: TestFromClientSide.testAtomicRowMutation
bq. * Multithreaded stress test:
TestAtomicOperation.testAtomicMutationMultiThreads
bq. * coprocessor test: TestRegionObserverInterface.testAtomicRowMutation
bq. * manual testing
bq.
bq.
bq. Thanks,
bq.
bq. Lars
bq.
bq.
> We need to atomically put/delete/increment in one call
> ------------------------------------------------------
>
> Key: HBASE-3584
> URL: https://issues.apache.org/jira/browse/HBASE-3584
> Project: HBase
> Issue Type: Bug
> Components: client, coprocessors, regionserver
> Reporter: ryan rawson
> Assignee: Lars Hofhansl
> Fix For: 0.94.0
>
> Attachments: 3584-v1.txt, 3584-v3.txt
>
>
> Right now we have the following calls:
> put(Put)
> delete(Delete)
> increment(Increments)
> But we cannot combine all of the above in a single call, complete with a
> single row lock. It would be nice to do that.
> It would also allow us to do a CAS where we could do a put/increment if the
> check succeeded.
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